Embryotomy device



T. l. SHUIVIATE.

EMBRYUTOMY DEVICE.

APPLICATION FILED AUG-23| |920.

1,397,461, l Patented NQV. 15,1921. .27731,

71,( .SMU/14,4722* JJM-5M@ ation/wg tWMTE STATES er a vertiefen a ab a ,sie a 'EMBRYOTOTVEY DEVICE.

nseaiei.

Application elec august es, ieee.

To all w .tem t may concern Be it known that l, Dr. THOMAS J. SHU- iuirn, citizen orn the United States, residing at Washington, District of Columbia, have invented certain new and useful lmjjirovements in llinbryotomy Devices; and l do hereby declare the following to be a full, clear, and exact description oi the invention, such as will enable others skilled in the art to which it appertains to maire and use the same.

rlhe present invention relates to embryotomy devices, and aims to provide a novel and improved appliance for veterinary obstetrical purposes.

Another object ot the invention is th provision of such a device constructedand arranged to be grasped and manipulated by one hand, and including forceps or tongs that can be manipulated by the hand for opening same and applying them to or closing them upon the ictus, and then clamped or set, to enable the delivery to be made.

A further object is the provision or' such a device having novel means for mounting and operating the forceps or tongs.

i still further object is the provision of such a device to which straps can be attached to be wrapped or wound around the arm, or otherwise used for conveniently assisting the hand in pulling` the device.

lt is also an object of the invention to provide such a device, which is simple and inexpensive in construction and manufacture.

`With the foregoing and other objects in View, which will be apparent as the description proceeds, the invention resides in the arrangement and construction of parts hereinaiter described and claimed, it being understood that changes can be made within the scope of what is claimed without departing from the spirit oiE the invention.

The invention is illustrated in the accompanying drawing, wherein Figure l is a plan view of the device as vheld in the hand, showing the straps applied to the arm.

Fig. 2 is an enlarged plan view, showing the body or case and other portions in section.

Fig. 3 is a rear end view of the device.

Fig. 4- is a plan view of a modified forni ot tongs or forceps.

ln carrying out the invention, there is provided a body or case 6, constructed of Specification of Letters atent.

lita'tented Nov l5, 192i.

Serial No. 465,491.

sheet metal or other suitable material and of a size to be-readily grasped and surrounded by the hand, the iront and rear ends of said case being open, anda pair ornforceps or tongs 7 extend forwardly from within the case, and are pivotally connected, as at 8,'at their point oi crossing adjacent to the forward end ot the case. Said tongs or forceps have arms 9 extending rearwardly beyond the pivot 8 into the case, and connected by pivots l0 with the forward ends of crossed bars llr and l2 within the case engaging a bolt or similar member 13 at their point of crossing, said bolt being preferably riveted or otherwise secured to one side of the case', and extending through the opposite side. The bar li is rigidly secured to the case, by one-or more rivets 14,01 the like, engaging through said bar andopposite sides oi" the case, ancL a toggle or lazy-,tong connection is thus l provided between the forceps or tongs Z and bars il and l2. i wing or thumb nut l5 is screw threaded on the bolt 18 and bears against a washer or spacer 16 extending through the correspending side of the case and bearing against the bar 1l, whereby said nut can be tightened and loosened by the lingers of the hand.

ln grasping the device, the case or body 6 is held in the hand, with the first and second 'fingers hooked across the forward end of the case, and the third finger extending rearwardly through'ainger ring l? secured to one edge of the case, and the thumb and little finger can be bent under the case. as seen in Fig. l, thereby obtaining a goed hold on the case. rlhe parts of the case are covered by the hand, to prevent injury therefrom2 during` the operation, and the device is readily inserted and withdrawn in the hand.

By loosening the nut l5, it is an easy matter to separate the tongs Z and to then close them upon the fetus, after which the nut l5 is again tightened thereby frictionally clamping the bars li and l2 within the case 6 and securely holding` or setting the tongs or forceps 7 in place, to prevent them from opening.

ln order to assist the hand in pulling the device, the rear ends or" the bars ll and l2 have loops i8 or equivalent means extending trein the rear end ot the case 6, for the connection of straps i9, or the like, which can be readily attached to the loops 18 by the hand, after the device has been applied. The straps 19 can then be wrapped in op# posite directions helically around the arm, as seen in Fig. l, and the terminals thereof opposite to the case 6 connected by a .buckle 20 orotherwise, after passing same around the neck, as at 2l, thereby anchoring the straps to the arm and body, to prevent slipping, or, the straps can be used otherwise for pulling the device.

As shown in Figs. l and 2, the tongs 7 have hooks 22 for use with a dead fetus, and, as shown in Fig. 4, the tongs have y in position.

2. An embryotomy device comprising a i case of a size to be grasped and surrounded by the hand, said case having a forward end across which the fingers can be hooked, a pair of tongs or Vforceps extending from within the casebeyond said end of the case and connected to the case,said tongs or forceps being arranged to be opened and closed by the hand, and rneans operable by the hand for holding said tongs or forceps in position.

3. An embryotomy device comprising a member of a size to be grasped and surrounded by the hand, a pair of tongs or forceps having a toggle connection with said member and adapted to be readily opened a pivot member for said bars at the point of crossing, means on said member for clamping said bars and operable by the hand, and crossed and pivoted tongs or forceps projecting from the case and having arms extending within the case and pivotally connected with said bars to provide a toggle connection.

5. An embryotomy device comprising a Y case, adapted to be grasped by the hand, a pair of tongs or forceps extending from within the case beyond one end thereof, and adapted to be opened and closed by the hand, portions extending from within the case from the other end thereof for the connection of straps and connected to said tongs or forceps and case, and means for holding said tongs or forceps in place when swung to position.

6. An embryotomy Vdevice comprising a case, crossed bars within the caserhaving loops extending from one end thereof for connection of straps, a pivot member for said bars at the point ofcrossing, means on said member for clamping the bars, and a pair Vof crossed tongs or forceps extending from the other end of the case, said tongs or forceps being pivoted together at their point of crossing and having arms extending within the case and pivotally connected toV said bars to provide a toggle connection.

In testimony whereof Ihave signed my name to this specification. i

THOMAS J, sHUMATE. 

